Liquid measuring nozzle



May 6, 1952 H. c. PURRIER LIQUID MEASURING NOZZLE Filed Sept. 27, 1949INVENTOR. Pa e/5e,

HOW/4 E0 C.

%m/dw7zmz v Eamon ATTORNEYS,

Patented May 6, 1952 UNITED STATES PATENT OFFICE 2,595,407 LIQUIDMEASURING NOZZLE Howard C. Purrier, Bristol, Conn. Application September27, 1949, Serial No. 118,062

2 Claims.

This invention relates to liquid dispensing nozzles, such as are used todirect liquid fuel into storage tanks, and more particularly to adispensing nozzle having liquid measuring and indicating means therein.

It is among the objects of the invention to provide an improvedliquid-dispensing nozzle attachable to one end of an elongated, flexibleconduit, the other end of which is connected to liquid-supply means,such as a pump carried on a fuel oil truck, which nozzle includes amanually-operated valve for controlling the flow of liquid therefrom andliquid-measuring and indicating means for indicating the quantity ofliquid dispensed from the nozzle at any particular time, which measuringand indicating means is built into the nozzle structure so that it isfully protected against damage, is accurately responsive to the flow ofliquid through the nozzle, so that the quantity dispensed can be quicklydetermined from the location of the nozzle, and does not interfere withthe normal operation of the nozzle or nozzle valve, and which nozzle issimple and durable in construction, economical to manufacture, and easyto use.

Other objects and advantages will become ap parent from a considerationof the following description and the appended claims in conjunction withthe accompanying drawing, wherein:

Figure 1 is a longitudinal, medial cross-section of a dispensing andmeasuring nozzle, illustrative of the invention;

Figure 2 is a longitudinal cross-section on the line 2-2 of Figure 1;and

Figure 3 is a rear elevation of a fragmentary portion of the nozzleconstruction.

With continued reference to the drawing, the improved nozzle comprisesan elongated nozzle body, generally indicated at [0, having a liquidpassage H extending longitudinally therethrough. At one end the body Inis provided with external screw threads l2 upon which is threaded aunion nut l3 which engages a fitting or sleeve 14 by means of which thenozzle is connected to the outer or free end of a flexible conduit orhose [5, the opposite end of which is connected to a liquid-supplymeans, such as the liquid pump carried by a fuel oil tank truck. At itsopposite end the body I0 is provided with an angularly-disposed spoutl6, which spout is 01?- set downwardly from the remainder of the body.At the juncture of the spout and the remainder of the body, the body isformed to provide a generally cylindrical valve chamber [1, and anannular valve seat I8 is provided at the bottom end of this chambersurrounding the liquid passage as the passage enters the spout l6. Avalve piston 19 is mounted in the valve chamber I! to cooperate with theseat I8, and a valve stem 20 extends from the valve piston through apacking gland 2| in the outer wall of the spout IS. A valve-operatinglever 22 is pivotally connected at one end to the spout [6 by thepivotal connection 23 and extends from the spout longitudinally of andspaced from the nozzle body. This lever bears intermediate its lengthupon the outer end of the valve stem 20, so that movement of the levertoward the nozzle body is effective to move the valve piston away fromthe seat l8 and open the valve. A guard structure 24 of substantiallyright-angular formation extends from the nozzle l6 adjacent the pivotalconnection 23 to the nozzle body [6 adjacent the screw threads [2 andaround the lever 22. The leg of this guard remote from the nozzle I6 isdisposed substantially perpendicular to the nozzle body, and is providedwith an elongated slot 25 in which the rear end of the lever 22 ismovable, and with spaced-apart notches 26, 27 and 28 at one side of theslot 25 in which notches the rear end of the lever 22 may be selectivelyengaged to hold the valve open in difierent positions of adjustment.

The nozzle body is provided with an internally screw-threaded,cylindrical opening at the end of the valve chamber formation oppositethe valve seat 18, and a closure cap 29 is threaded into this opening. Acompression spring 30 interposed between the closure cap 29 and thevalve piston l9 resiliently urges the valve piston to valve-closingposition from which the piston is moved against the force of spring 30by manual operation of the lever 22.

Adjacent the valve chamber I! the liquid passage II is narrowed by athickening 3| of the body wall at one side of the passage, and asemi-cylindrical chamber 32 is provided in the thickened wall portion 3|at one side of the liquid passage H. This chamber is at the upstreamside of the valve chamber l1 and valve seat l8 in relation to thedirection of liquid-flow through the nozzle, and a vaned rotor 33 isjournaled in this chamber and extends across the liquid passage II.

The nozzle body is provided, at the end of the chamber 32 adjacent theclosure cap 29, with a circular opening through which the rotor 33 maybe inserted into the chamber 32, and a circular cover plate 34 having acentral opening therein is secured to the nozzle body covering 3 thisopening 35. A shaft 36 extends from the rotor 33 through a packing gland31 securedin the aperture of the plate 34, and a spur gear 38 is securedon this shaft at the outer side of the plate 34.

An elongated, rectangular receptacle formation 40 is formed on thenozzle body at the Side of the body opposite the valve seat l8 and spoutl6, and includes the cover plate 34. This body is divided, intermediateits length, by a transverse partition 4| provided with an apertured boss42, and a revolution counter 43 is mounted in this receptacle formationat the side of the transverse partition 4| opposite the cover plate 34.The side of the formation 40 remote from the liquid passage II is open,and a cover 43 is secured to the receptacle formation at the outer sidethereof to cover this open side of the formation. This cover 43 includesa transparent portion 44 overlyingthe revolution counter 43, so that theindications on the counter are clearly visible through the cover. Therevolution counter 43 is graduated in units of liquid measurements andis calibrated to the rotor 33.

An idlershaft 45 is journaled at its respectively-opposite ends in thecover plate 34 and the cover 43, and a spur gear 46 secured on thisidler shaft meshes with the spur gear 38 on the rotor shaft 36. Abeveled gear 41 is secured on the shaft 45 and meshes with acomplementary beveled gear 48 secured on the revolution counter shaft49, so that the revolution counter is driven by the rotor 33 when therotor is rotated by the flow of liquid through the nozzle.

A zeroizing thumb wheel 50 extends from the revolution counter 43through the rear wall of the .receptacle formation 40, so that thecounter can be turned to its zero position before beginning aliquid-dispensing operation through the nozzle. When liquid is thendispensed through the nozzle, the counter 43 will be operated and willaccurately indicate the quantity of liquid dispensed, since the counterwas zeroized. The flow of liquid through the nozzle is controlled by themanually-operated valve, and when the dispensing operation hasterminated, the operator may obtain the quantity dispensed from thecounter mounted on the nozzle and will not have to return to the pump orother liquid-supply means for this information.

The invention may be embodied in other specific forms without departingfrom the spirit or essential characteristics thereof. The present.embodiment is, therefore, to be considered in .all

respects as illustrative and not restrictive, the scope of the inventionbeing indicated by the appended claims rather than by'the foregoingdescription, and all changes which come within the meaning and range ofequivalency of the claims are, therefore, intended to be embracedtherein.

What is claimed is:

1. A liquid-dispensing nozzle comprising an elongated nozzle body havinga liquid passage extending longitudinally therethrough, and asemicylindrical chamber therein at one side of said fluid passage withan opening in the wall thereof at one end of said chamber, a vaned rotorrotatably mounted in said chamber and extending across said liquidpassage, a cover closing the opening in said body wall and having anaperture therein, said rotor having a shaft extending through saidcover, an elongated receptacle formation extending along said body andbeing separated from said liquid passage and including said cover, arevolution counter mounted in said receptacle formation and graduated toread in units of liquid measurements, and gear means connecting saidrotor shaft to said counter.

2. In a liquid dispensing nozzle, an elongated nozzle body formed with aliquid passage extending longitudinally therein, a nozzle on said bodycommunicating with one end of said passage, said body being formed witha transversely extending semi-cylindrical chamber located intermediatethe ends of said passage and at one side of said passage, said chamberhaving a closed end and an end opening through the side :of said nozzlebody, said chamber having an open side exposed within said passage, acover closing said open end of the chamber, an elongated receptacleextending along the exterior of said nozzle body and enclosing the openend of said chamber and said cover,a revolution counterwithin saidreceptacle and including a longitudinally extending rotary shaft, avaned rotor mounted axially within-said semi-cylindrical chamber havinga shaft extending across said liquid passage, one end of said rotorshaft being journalled in a side'of said nozzle body with its other endextending through an opening provided in said cover, and gear meansoperatively connecting said other end of the rotor shaft and therevolution counter shaft.

HOWARD C. PURRIER.

REFERENCES CITED The following references are of record in the GriesNov. 24,1942

